Duxer



No Model.)

JQRGANDUXBR.

' AUTOMATIC LINE DISGHARGBR. v

Patented July 31, 1894.

W/TNESSES.

.65 V GaW l I x l u I I '1 l l l m: "cams PETERS ca. PHOTOLITHO"WASHINGTON, 04 c.

INVENTOH A TTORNE YS.

UNITED STATES PATENT OFFICE.

JAOINTO FERRER GANDUXER, OF GRAGIA, SPAIN.

AUTOMATIC LINE DISCHARGER.

SPECIFICATION forming part of Letters Patent No. 523,889, dated July 31,1894.

Application filed November 4, 1892. Serial No. 450,960. (No model.)Patented in Spain August 12, 1890 No. 10,923, and in France December 24,1891, No. 210,420-

To alt whom it may concern.-

Be it known that I, J AOINTO FERRER GAN- DUXER, of Gracia, (Barcelona,)Spain, have invented a new and Improved Automatic Line Discharger,(which hasbeen patented in Spain, No. 10,923, dated August 12, 1890, andin France, No. 210,420, dated December 24, 1891,) of which the followingis a specification, ref erence being had to the accompanying drawing,which is a front elevation of my improved line discharger, showing itsconnection with the lines.

The object of my invention is to construct an automatic device forinsertion in electrical lines, which will discharge the said lines whenan abnormal current passes, as for example, when lightning strikes atelegraph, telephone or electric light wire, or when a conductorcarrying a heavy current of electricity for lighting or power purposescrosses a telephone or telegraph line.

My invention consists in an electro-magnet, an armature lever carryingan armature and prolonged between a pair of electrical contacts,aretractile spring for holding the armature lever normally against theback contact spring, and line and ground connections, all as will behereinafter more fully described.

My improvement can be used for either a double or single system ofconductors. In the present case I have shown a double instrumentconnected with two electrical lines.

To the base A are secured the electro-mag nets B, B, which are of thebar form. The poles of the magnets are prolonged beyond the helixes andin the extremities of each pole are formed right angled notches a. Tothe base A, at the end of the magnet opposite the polar extremity ispivoted an armature lever C, which is bent twice at right angles andreaches over toward the pole of the magnet. The lever G carries anarmature D, which projects into the notch a of the magnet pole, and thesaid lever O is prolonged beyond the armature between contact screws b,12', arranged on opposite sides thereof. To the base A is secured oneend of the retractile spring 0, the other end of which is connected withthe armature lever G.

In the duplex instrument like that shown in the drawing, the two halvesare exactly alike but oppositely arranged with respect to each other,and the inner posts supporting the inner contact screws 1) are connectedto gether by the strip (1, which is connected by a wire through thebinding post 6 with the ground wire f leading to the ground G. The baseA is provided at the top with binding posts 9, g and at the bottom withbinding posts h, h, arranged on opposite sides of the binding post e.The current passes from the lines L, L, to the magnets B, B, through thebinding posts g, g and connecting wires 6,71, and the current flows fromthe magnets B", B through wires j, j to the levers C, thence through theback contact screws b, wires lo and binding posts h, h. The retractilesprings c are adjusted so as to cause the armature levers to resist anyattraction due to the normal current; as a consequence, the currentpasses through the instruments and the lines, and the armature leversare held away from the contact screws 1), but when an abnormal currentpasses through the magnets the armatures D are attracted, the levers Oare brought into contact with the screws 1) and the current passes tothe ground direct, thus preventing injury to any instruments that may beplaced in the line beyond the line discharger.

The discharge screws are arranged at right angles to the axis of themagnet and in line with the poles of the magnet, so that when an arc isformed between the lever G and the contact screws 6, the lines of forceemanating from the magnet will extinguish the arc.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- In a line discharger, the combination of the magnet Bprovided with a notched pole, the bent armature lever O carrying thearmature D, the retractile spring 0, the contact screws 5, 19', arrangedat right angles to the axis of the magnet and the line connections, substantially as specified.

J AOINTO FERRER GANDUXER.

Witnesses:

CARLOS EsPEIN, FRANCISCO BOATELLA.

